Has the workhorse Xoom reached the end, just barely picking up JB support from Motorola and a handful of enterprising repositories, i.e. CyanogenMod, AOKP, and TeamEOS? Or, do you foresee any future support for the Xoom?
I still own and use mine every day. In fact, I prefer it in many ways over my Nexus 7. Even though it's showing its age (perhaps slower by comparison to the N7), it has never really let me down.
Of course you realize this is just a thinly-veiled ploy to ask for a Modaco Custom ROM to support my Xoom and, thereby, extend the life of a perfectly good device for years to come. ;-)

How are you trying to charge it, trishmac? AC? USB?
If you're charging with USB, make sure you use the cable that came with the tablet and that your USB source is powered.
If you're using the AC adapter check to make sure the cable is seated correctly.